import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Orser from '../components/orser/Orser.vue'
import Report from '../components/report/Report.vue'




Vue.use(VueRouter)

const routes = [{
        path: '/',
        redirect: '/login' //自动跳转到login页面
    }, {
        path: '/login',
        component: Login
    },
    {
        path: '/home',
        component: Home,
        redirect: '/welcome', //自动跳转到welcome
        children: [{
                path: '/welcome',
                component: Welcome
            }, {
                path: '/users',
                component: Users,
            }, {
                path: '/rights',
                component: Rights,
            }, {
                path: '/roles',
                component: Roles
            }, {
                path: '/categories',
                component: Cate
            }, {
                path: '/params',
                component: Params
            }, {
                path: '/goods',
                component: List
            }, {
                path: '/goods/add',
                component: Add
            },
            {
                path: '/orders',
                component: Orser
            },
            {
                path: '/reports',
                component: Report
            },

        ]
    },

]


const router = new VueRouter({
    routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
    // to 将要访问的路径
    // from 代表从那个路径跳转而来
    // next是一个函数 表示放行
    // next()放行   next('/login')强制跳转
    if (to.path === '/login') return next()

    // 获取toke
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) return next('/login')
    next()
})

export default router